Indian Journal of Plant Genetic Resources

  • Year: 2001
  • Volume: 14
  • Issue: 3

Correlated Response in Amaranth

  • Author:
  • Sudhir Shukla, SP Singh
  • Total Page Count: 2
  • DOI:
  • Page Number: 371 to 372

Plant Breeding and Genetics Section, National Botanical Research Institute, Lucknow-226 001 (Uttar Pradesh).

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Abstract

The present study was done to test the suitability of direct and indirect selection of grain yield in amaranth through nine component traits. The selection gain among yield components was high for number of inflorescence/plant (110.55%) followed by number of nodes/plant (83.63%), leaf size (72.9%) and number of primary branches/plant (68.76%). The correlated response for grain yield was maximum on selection of plant height (4.18%), leaf size (3.25%), number of inflorescence/plant (3.14%) and number of spikelets/spike (2.90%). The estimate of correlated response (CRY) and relative selection efficiency (RSE) were in proportion with each other, though relative selection efficiencies were less than one. The selection of plant types with medium plant height, large number of inflorescence/plant and spikelets/spike, and big leaf size is suggested to enhance the grain yield.

Keywords

Amaranth, Correlated Response, Genetic Advance, Heritability